User's Manual
ADVANTAGE SERIES LJ45 TRANSMITTER OWNER’S MANUAL
ADVTG XMTR Rev 01 10 Control Chief Corporation
8 TROUBLESHOOTING AND MAINTENANCE
Introduction
This section is specific to the LJ45 transmitter.
For system troubleshooting information, please refer to the primary system manuals.
If your attempts are not successful in correcting a problem with your transmitter contact Control
Chief Technical Support for assistance. Please refer to Contacting Control Chief
on page 12
contact information.
Switch Maintenance
Switch and joystick replacement can be accomplished by a qualified electronics technician. For
general switch replacement, please refer to the layout and wiring drawings supplied with your
transmitter.
Replace transmitter switches only with authorized Control Chief parts.
Radio Maintenance
The radio module incorporated in the LJ45 transmitter is synthesizer based, and therefore, does
not have any tuning or calibration requirements.
General Troubleshooting
Basic troubleshooting techniques should be employed when diagnosing an LJ45 transmitter.
The technician should have the specific transmitter layout and wiring prints as a reference when
analyzing and repairing a transmitter problem.
Radio Troubleshooting
If you suspect the primary transmitter is not transmitting an RF signal, the most effective means
to evaluate this problem is to place a spare transmitter into service. If the spare transmitter
works, the primary is indeed the problem, and should be returned to Control Chief for service.
ADVANTAGE SERIES LJ45 TRANSMITTER OWNER’S MANUAL
ADVTG XMTR Rev 01 3 Control Chief Corporation
WARNINGS:
1. Read this manual carefully before operating and installing this product.
2. Due to the complex nature of equipment, it is necessary to read the entire manual before
installation.
3. Only authorized personnel should service this equipment. Unauthorized work on this unit
will void the warranty.
4. This manual is for reference only; please call your distributor or Control Chief if further
assistance is required.
5. The equipment has been tested for correct operation before delivery from the factory.
However, it must not be used in critical or hazardous operation where incorrect operation
may cause personal or equipment damage.
6. The crane/machine should be equipped with mainline contactor, limit switches, and other
required safety devices as dictated by CMAA, OSHA, or all other applicable governing
regulations.
7. The GND (ground) of receiver must be connected to ground of crane/machine, or electrical
shock can occur.
8. Do not use this device during electrical storms or under conditions of electrical interference.
9. Ensure transmitter batteries are in good condition and power for receiver is correct.
10. Installation and maintenance should be done only while the crane/machine’s main power
and receiver’s power are off and locked out to prevent electrical shock.
11. After daily operation, please shut off main power in crane/machine, the power to the
receiver, and remove transmitter key.
12. Transmitter should be placed in a safe place when not in use to avoid accidental pressing of
buttons.
13. Contents of the manual may be amended by the manufacturer without notice.
USA/CANADA WARNINGS:
This device is certified under FCC and Industry Canada for operation. Changes or modifications
made without express permission from the manufacturer may void the user’s authorization
for operation.
A separation distance of at least 2cm must be maintained between the antenna and the body of
the user.
This device is for occupational use only. Occupational users are those persons who are
exposed as a consequence of their employment, provided these persons are fully aware of
and exercise control over their exposure.